Biology, 17.12.2021 06:20 samiller30
in a population of fruit flies grown in laboratory conditions, a new phenotype arises. instead of the typical red eyes, a purple-eyed individual is seen. This individual survives to adulthood and is able to mate with other flies. two students studying the fruit fly population discuss the origin of the purple-eyed fruit fly. one student insists that the fly came from outside of the original fruit fly population. the other student claims that the fly originated from within the laboratory fruit fly population. which statements defend the claim of student two that the new phenotype originated from within the fruit fly population?
Answers: 3
Biology, 22.06.2019 04:00
What best explains the inability for life to exist in earth early atmosphere
Answers: 1
Biology, 22.06.2019 09:10
Hormones are chemical molecules produced by endocrine glands. one such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. which two statements describe the probable reason for the function of the hormone? the cells in the heart have specific receptors that allow for the intake of hormones. the heart and the endocrine glands have the exact same types of cells. all cells make the same types of hormones. thyroid hormones show their effect on the heart by means of specialized cells. thyroid cells and cardiac cells have different dna.
Answers: 1
Biology, 22.06.2019 18:00
Prokaryotic and eukaryotic cells are different in many ways other than the presence or absence of a nucleus. if both archaebacteria and eubacteria are prokaryotic cells, then why are archaebacteria more closely related to eukaryotic cells than they are to eubacteria?
Answers: 3
Biology, 22.06.2019 20:30
Aspecies has evolved an asexual mode of reproduction by having offspring develop from unfertilized eggs. which of the following will be true of this species' response to natural selection? there will be more deaths from natural selection because there is no mutation. there will be less genetic variation from recombination and a risk of not adapting quickly to environmental change. the species will increase in numbers because genetic variation is increased. the species will compensate for loss of genetic variation by hybridizing with other species. there will be fewer deaths from natural selection because sexual recombination always leads to extinction.
Answers: 1
in a population of fruit flies grown in laboratory conditions, a new phenotype arises. instead of th...
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